Back-gear mounting for motors



Nov. 23 192s. 1,607,697

A. X. SCHWEBEL ET AL BACK GEAR MOUNTING FOR MOTORS Filed Sept. 5. 1924 @figZ. 50-- I6 I 5/ I0 Z! 20 [6 I5 I4 7 2L 1. j 5 8 [7 M g I5 E 28 til Patented Nov. 23, 1926.

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Application. filed September An. object of [our invention is to provide a back gear mountingv for electric motors, and thelike which may be accommodated to' various ratios betweenthe Iback gear andv the motor drive pinion.

Anotherobject of our invention is to provide a device of this kindwhich may b'e readilyarranged. for floor, left or right side wall mounting, or for ceiling suspension. j

Another object is to provide a device'of thisukind which. is simple, of. construction and'in which certain-personal injury hazards are eliminated;

Another object is to provide a back geared motor in which an ordinary electric motor may be used without the necessity of providing a special stator and without necessitating the use of any attachments upon said ordinary motor. 7

These and other objects are attained by the means described herein and disclosed in the accompanying drawings, in which:

Fig. 1 is a side elevational view of a back geared motor of our invention, the gear case being partly broken away. I

Fig. 2 is a cross sectional new on line 22 of Fig. 1.

Fig. 3 is a fragmental detail of our invention shown in an elevation.

Heretofore it has been customary in making back geared motors to provide a back gear shaft bracket either integral with the stator or secured thereto or to provide a pair of bearing pedestals which would naturally be adapted only for one type of mounting, namely either floor, side wall or ceiling mounting. The device of our invention comprises a base 4 upon which any stock motor 5 of suitable rating may be mounted by any suitable means such as lug screws 6 passlng through the foot of the motor 5 and through perforations in the base 4. The back gear shaft 7 which carries the back gear 8 meshing with the motor pinion 9, is adapted to be mounted in any position by the following described means. A cylindrical pedestal housing 10 is provided at its opposite ends with uprights 11 and a base 12. This structure may be made integral in practice. The housing 10 is provided at each end with a bearing bushing housing 13 having mounted therein a slotted bearing bushing 14 and an oil ring 15 adapted to be seated in the slot 16 in the bearing 14 and freely movable therethrough, The oil ring 15 is passed over 3, 1924. SeriaLNo. 735,701.

the shaft '7 and is adapted. to be suspended therefrom into the oil well 17 in'the bearing'housing 13. An oil well cap 18 provides means for filling and closing the oil well 17 which is provided at its. base. with suitable drain plugs 19. The annular flange 20"of the bearing housing 13 is adapted'to abut the flanged ends 21of the housing lOa'nd to be securedth'ereto by means of a pair of cap screws .22 passingthrough-the. perer l ie s a in he nge 2 M 2 respectivelyion diametrically opposite sides of'the flanges 20 and 21; The perforations 24 are positioned on the horizontal and perpendicular diameters of the flange 21 while the perforations 23 which need be only two in number are positioned horizontally on opposite sides of the bearing housing 13 when the oil well is in an upright position. The housing base 12 is provided with a key way 25 extending transversely across said base and the base 4 is supplied with a corresponding key way 26 whereby the bases 4 and 12 are rigidly secured against relative movement by means of a key 27, after the shaft 7 and the gear 8 and pinion 9 have been aligned. The bases 4 and 12 may besecured together by any suitable means such as cap screws 28.

From the foregoing it will be noted that we have provided means whereby an ordinary motor may be converted into a back gear motor without any alterations in the motor structure and at the same time is provided a mounting for the back gear shaft which may be arranged to accommodate either the side wall or ceiling mounting. For ceiling suspension the back gear bearing housing 13 and the motor bearing housings 29 would be reversed so that the oil well openings would be positioned adjacent the top of the bases whereupon the base 4 would be secured to the ceiling with the bearings and oil wells in their proper upright positions. Also if a left handor right hand side wall mounting be desired the hearing housings 13 and 29 would be turned a quarter revolution in the desired direction. The base 4 may be provided with a plurality of key ways 26 whereby the center to center distance between the motor shaft and the back gear shaft 7 may be varied for providing various gear ratios between the back gear 8 and the motor pinion 9. The gear case 30 is mounted by means of brackets 31 secured are to the housing 10 by means of capscrews or any other suitable fastening means. The free end of the back gear shaft 7 may be provided with a pulley or suitable coupling as desired. a

It will be noted that by providing the housing 10 as a mounting for the back gear bearings that there is provided a means for handling and mounting the back gear parts as a unit and at the same time the back gear shaft is guarded against dirt and the danger of injury to the person incident to keeping such parts cleaned.

Vhat we claim is:

1. In a device of the class described the combination with a base adapted to receive an electric motor, of a pedestal comprising a cylindrical housing, oil well type bearing housings mounted on the ends of the cylindrical housing, a back gear shaft journaled in said bearing housings, and means for se lectively securing said housing to the base,

the bearing housings being adapted for selective mounting in relation to the base whereby the base and back gear shaft may be arranged for floor, ceiling and side wall suspension.

2. In a device of the class described the combination of a-base adapted to receive an electric motor, a pedestal, means for selectively positioning the pedestal upon the base, oil Well type bearing housings mounted on opposite ends of the pedestal, said bearing housings being adapted for selective mounting in relation to the plane of the base whereby the base and pedestal may be arranged for flooring, ceiling and side Wall mounting, and means for securing the pedestal to the base.

In testimony whereof we have hereunto subscribed our names this 29th day of August, 1924.

AUGUST X. SOHWEBEL. EDWIN o. soHWEBEL. 

